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286530313 is a prime number
BaseRepresentation
bin10001000101000…
…001101100001001
3201222011020200211
4101011001230021
51041322432223
644233201121
710046316226
oct2105015411
9658136624
10286530313
11137814513
127bb601a1
1347492b84
142a0a894d
151a24cd0d
hex11141b09

286530313 has 2 divisors, whose sum is σ = 286530314. Its totient is φ = 286530312.

The previous prime is 286530311. The next prime is 286530367. The reversal of 286530313 is 313035682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183142089 + 103388224 = 13533^2 + 10168^2 .

It is a cyclic number.

It is not a de Polignac number, because 286530313 - 21 = 286530311 is a prime.

Together with 286530311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (286530311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143265156 + 143265157.

It is an arithmetic number, because the mean of its divisors is an integer number (143265157).

Almost surely, 2286530313 is an apocalyptic number.

It is an amenable number.

286530313 is a deficient number, since it is larger than the sum of its proper divisors (1).

286530313 is an equidigital number, since it uses as much as digits as its factorization.

286530313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 286530313 is about 16927.2062963739. The cubic root of 286530313 is about 659.2602002937.

Adding to 286530313 its reverse (313035682), we get a palindrome (599565995).

The spelling of 286530313 in words is "two hundred eighty-six million, five hundred thirty thousand, three hundred thirteen".